What To Do With Offsets – Planting Small Shoots Growing From Bulbs

What To Do With Offsets – Planting Small Shoots Growing From Bulbs

By: Bonnie L. Grant, Certified Urban Agriculturist

Bulbscan be propagated several ways, but one of the easiest is through division.Those little shoots coming from a bulb indicate that the bulb is reproducingunderground. Each little shoot will become a bulb in time and flower. The smallshoots growing from bulbs are the fastest way to get more blooming plants.

Reproducing Bulbs with Shoots Growing from Offsets

Bulbs produce bulbils and bulb offsets as easy propagation parts. You need to know what to do with offsets to increase your stock of favorites. The shoots growing from offsets will tell you when it is time to divide and remove the new baby bulbs.

You can wait until the shoots coming from a bulb die back to divide or take the offsets when the leaves are still green.

Bulbsare propagated through seed, scales,bulbils, chipping,and divisionof the shoots growing from offsets. Starts from seeds take a ridiculously longtime to flower and are really only useful as a hobby and interesting project.

Growing from scales is useful for lilies,while chipping works on daffodils,hyacinth,and a few other species. Bulbils are easy to grow but, again, take quite sometime to flower. The quickest and easiest way is through offsets, which canflower within a year or two.

The small shoots growing from bulbs are an indicator thatyour plant is mature and has decided to make babies. Not all bulbs reproducethis way, but many of our most common ones do. This is a bonus because your oldbulb will begin to produce smaller flowers and eventually none at all. However,the bulb offsets will become new flowers and the parent bulbs produce many,meaning more beautiful flowers!

What to Do with Offsets

You can take the offsets at any time, provided you areprepared to care for them if they still have leaves. Dig around the main plantcarefully and remove the small bulbs around the main bulb. If these havealready sprouted, plant them in a prepared bed and water them in.

Keep them moist as they establish. The leaves will drop offin fall. Mulchthe bed for winter. In areas where you have to lift tender bulbs for winter,dig up the plant and collect all the offsets. Separate these out from the largeparent plant, which will begin to produce less and less. Plant the small bulbsin spring.

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Read more about General Bulb Care


How Do Bulbs Reproduce?

Bulb plants, like tulips (Tulipa spp.) and daffodils (Narcissus spp.), are single parents in the bigger sense of the word: They reproduce without romance or pollen exchange. A true bulb represents nature's most impressive magic. It looks as dry as garlic but houses a complete plant embryo, as well as the buds from which baby bulbs can grow.


All About Flower Bulbs

Stoke — or start — a love affair with bulbs by learning about different types of flower bulbs.

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Mixed Bulb Types

When tulips, daffodils and lilies burst into bloom, you’re probably not thinking much about the part of the plant that’s underground: the bulb. Flower bulbs are actually a type of food storage organ, a way that plants stash their homemade nosh to help fuel future growth and flowers. Many plants get lumped under the heading bulbs, including tubers, corms and rhizomes. Knowing a little about different types of bulbs can help you understand how these plants grow —and how you should handle them at planting time.

Onions Are a Bulb

If you cook at all, you’re probably familiar with the internal structures of an onion. Guess what? Onions are what’s known as true bulbs, tulips are also true bulbs. A true bulb has layers of fleshy tissue that act as the food storage organ. Roots form at the base of the bulb and serve to anchor the bulb in soil and absorb water and nutrients. When you buy bulbs, you’ll often see dried root remnants at the base of the bulb. Examples of true bulbs: onion, garlic, allium, daffodil, tulip, amaryllis, grape hyacinth, Dutch hyacinth, Dutch iris, scilla, lily.

Asiatic Lily

Inside a true bulb is a central shoot that contains layers of leaves and immature flowers. With bulbs planted in your garden, this central shoot forms after flowers fade. This is why it’s important to let leaves of bulbs like tulips and daffodils remain and stay green until they naturally die back. As long as leaves are green, they’re helping to store food that helps form the shoot for next year’s show. Most true bulbs have a protective papery skin (think onion, daffodil, tulip). An exception to this rule are the lilies, including Asiatic and Oriental types.

Lily Bulbs

Lily bulbs lack an outer protective, papery layer. They’re often sold packed in sawdust or peat moss. It’s important to store lily bulbs correctly prior to planting because they have no outer layer that helps protect against moisture loss or temperature fluctuations. Keep lily bulbs cool (below 45 degrees F) but not freezing to help prevent sprouting. If sprouts form prior to planting, handle bulbs carefully. If you break the sprout, the lily won’t flower that year.

Gladiolus

A gladiolus grows from a type of bulb known as a corm. A corm is a solid mass of stem tissue — not layers of tissue like a true bulb. They’re usually round and sort of flat. Both buds and roots grow from the base of the corm, which is the part that stores food for the plant. Examples of corms: gladiolus, crocus, freesia, acidanthera (African gladiolus), crocosmia.

Gladiolus Corms

Corms typically have an outer papery protective layer. Even so, it’s best to keep them cool in storage (40 to 55 degrees). If shoots appear on corms prior to planting, handle them gingerly. If you break the shoot, you risk losing that year’s flowers. Once a corm is planted, as the plant grows it actually devours all the stored food in the corm, which shrivels and dies. As the plant continues to grow, it forms a new corm on top of the old one.

Canna

The canna is a popular tropical plant that’s not hardy where the soil freezes solid. It grows from a type of bulb known as a rhizome, which is located at or just beneath the soil surface. A rhizome is basically an enlarged or fat stem that stores starches and other easy-to-use plant foods.

Canna Rhizome

Typically a rhizome grows horizontally in soil, either just below the soil surface or sometimes deeper underground. Like an above-ground stem, a rhizome has nodes, spots where buds reside. These buds can grow leaves and/or roots. Because of this trait, it only takes one piece of a rhizome to grow an entire plant. This canna rhizome has five nodes or places where sprouts are emerging. Dried root remnants are also visible.

Calla Lily

A calla lily is another popular plant that grows from a rhizome. Other examples of rhizomes: canna, bearded iris, ginger, bamboo, lily of the valley. When growing rhizomes that aren’t hardy in your zone, dig and store them over winter. Wait for frost to kill (or at least damage) leaves. Dig up rhizomes and cut off leaves. Let a 1- to 2-inch stem stub remain. Cure the rhizomes in a warm, dry place for several days — until cut surfaces are dry.

Calla Lily Rhizomes

The trick with storing rhizomes over winter is not letting them dry out. To store rhizomes, place them in barely damp peat moss and keep them at 50 degrees F for callas 60 to 70 degrees Fahrenheit for cannas. Check the rhizomes one to two times over winter to make sure they aren’t rotting (too wet) or shriveling (too dry). In spring, many rhizomes in storage start to sprout, like these calla lily rhizomes. Take care not to break these sprouts prior to or during planting, or you'll diminish the flower show.

Dahlia

Another type of bulb is known as a tuber. There are two types of tubers: root tuber and stem tuber. A dahlia grows from a root tuber. Examples of root tubers include dahlia, peony, tuberous begonia and ranunculus. A potato is probably the most famous stem tuber. Examples of stem tubers include potato, caladium, cyclamen and anemone.

Dahlia Tubers

A tuber lacks a papery protective covering and has buds on the surface known as eyes. With root tubers like dahlias, the eyes or buds are at the stem base, where it joins the root tuber. Stems and flowers develop from these eyes. As long as you have a tuber with an eye, you can grow an entire plant. The eyes on these dahlia tubers have sprouted to form tiny leaves.

Bulbs: The Beginning of Beauty

True bulbs, corms, rhizomes and tubers all have one thing in common: They each need a dormant or rest period following their time of active growth and bloom. Some bulbs need a summer dormancy (tulip) others rest in winter (canna). You can grow any type of bulb in your garden as long as you provide the right dormant period. That’s why northern zone gardeners dig tender bulbs, such as calla lily or canna—to give them a winter dormancy. Understanding how true bulbs, corms, rhizomes and tubers grow helps you to give these bulb beauties the TLC they need to thrive and blossom, year after year.


Spring Flower & Bulb Identification Cards

I am so thrilled to be sharing my Spring Bulb and Flower Identification Cards with you today! I know my son will love looking at these as he investigates the new spring life growing around him!

Oh how I long for spring. When I first began my journey as a wife and a homeowner and a gardener, I realized how much I love bulbs. Crocus, daffodils, tulips, hyacinths. I love spring bulbs. I love watching them peek out of the cold winter soil. They say, “I’m alive!” I long to see these bits of green each year.

Every fall I plant more and more. This is partially because I have a problem — can one have too many bulbs? And partially due to our mole problems….

Anyhow, my dear son planted tulip bulbs all his own (he even picked them out!) last fall and I can’t wait to see his bright smile when he sees his orange blossoms come out of the earth. We planted a rainbow.

I created these Identification Cards to help my son distinguish between crocus and hyacinth and daffodils and tulips. I hope your child will find fun use for them too as they discover and explore nature!


Watch the video: How to propogate bulbs and multiply your plants